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'68 427 or not?

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Old Feb 26, 2016 | 07:56 PM
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Default '68 427 or not?

We have a '68 convertible. The hood has the 427 emblems on it but it has a 350 engine. We don't know the history of the car. Is there a way we can tell if the car was originally a 427 or did someone replace the hood with the 427 emblems on it. The bulk head that supports the radiator seems to be a bulk head for a larger radiator which makes us think it originally had a 427 engine.
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Old Feb 26, 2016 | 08:48 PM
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the front sway bar would be over 1 inch, rear end would have caps and bolts
one fuel line on the right side frame rail, rear sway bar, 5600 red line, 390 had
2 fuel lines though, you have the bb hood. those are your biggest clues
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Old Feb 26, 2016 | 09:38 PM
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A Q-jet 427 would have 2 fuel lines. At least the 69 does
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Old Feb 27, 2016 | 12:55 PM
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Default '68 427 or not?

Originally Posted by ddawson
A Q-jet 427 would have 2 fuel lines. At least the 69 does
I agree, and my very original 68 does have 2 fuel lines for the 390.
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Old Feb 27, 2016 | 02:55 PM
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Does the vin on the motor match the car, if so it is the original motor
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Old Feb 27, 2016 | 06:08 PM
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Originally Posted by LT-1 kid
the front sway bar would be over 1 inch, rear end would have caps and bolts
one fuel line on the right side frame rail, rear sway bar, 5600 red line, 390 had
2 fuel lines though, you have the bb hood. those are your biggest clues

I disagree on the front swaybar being larger that 1" I believe they were just under at 7/8 or 15/16
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Old Feb 27, 2016 | 06:18 PM
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The tach being the hardest to change would be my 1st look.

Then the HD caps on the 1/2 shafts, Radiator and shroud.
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Old Feb 27, 2016 | 06:46 PM
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If it is a BB, the frame will be bent because they all got sideways (bias ply tires vs. torque) and hit something. A Corvette shop told me this...
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Old Feb 27, 2016 | 07:55 PM
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Originally Posted by redvetracr
I disagree on the front swaybar being larger that 1" I believe they were just under at 7/8 or 15/16
I just measured the sway bar on my 68 BB Vert. with calipers and it is exactly one inch. And my frame is not bent. And it has a 5600 red line on the tach. The numbers on my engine match up the serial number so I know it is a real BB Vette. Not ALL BB cars have hit something
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Old Feb 29, 2016 | 07:35 AM
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Originally Posted by Minnesota122001
...Is there a way we can tell if the car was originally a 427...
Not without factory documentation. Without it, you're probably guessing and hoping.
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